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| Home > Publications database > Theorie der inelastischen Elektronenstreuung an Metalloberflächen |
| Home > Publications database > Theorie der inelastischen Elektronenstreuung an Metalloberflächen |
| Book/Report | FZJ-2018-03341 |
1990
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag
Jülich
Please use a persistent id in citations: http://hdl.handle.net/2128/18810
Report No.: Juel-2395
Abstract: Two methods have been developed in order to calculate the inelastic scattering of electrons from metal surfaces. The first method uses a formalism based on the Fermi Golden-Rule. Accounting for the angular resolved density of states (experiments are typically angular resolved caused this method to be numerically too cumbersome. The second method uses a Greensfunction formalism, which calculates the current of inelastic scattered electrons. This formalism avoids the difficulties which occured in the Golden-Rule formalism by using an optical potential. This second method has been applied to the homogeneous electron gas and the homogeneous electron gas with surface barrier. The latter case is the easiest way to realistically simulate the inelastic angular resolved electron scattering at solid state surfaces.Closer to reality is the use of the layer-KKR-theory to calculate the statesand propagators involved in the scattering at the real crystal. Within this frameworkthe crystal atoms are allowed as scatterers . Consequently, it is possible todetermine the electrons scattered inelastically at the real crystal.These theories have been applied to the case of inelastic electron scatteringfrom aluminium surfaces .
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